IIRC, the first 2 versions were actually used in vehicles for different
years. The "B" version was a special part to allow a mix of new filler
neck pipe with old fuel tank after the old filler neck was no longer
available as a replacement part. Correct anyone?

Mark

Old Volks Home wrote:

> ..............
>
> Answer to the second question:
> Of the three different filler tube seals, only two are still available, 251
> 201 139 & 251 201 139 A.  The 251 201 139 B was dropped late by VAG last
> year.
>
>